package demo2;

import java.security.Key;

public class Computer {
    public void powerOn() {
        System.out.println("打开电脑");
    }

    public void powerOff() {
        System.out.println("关闭电脑");
    }

    public void usbServer(Iusb usb){
        usb.openDevice();

        if(usb instanceof Mouse) {
            Mouse mouse = new Mouse();
            mouse.click();
        }else if(usb instanceof KeyBoard) {
            KeyBoard keyBoard = new KeyBoard();
            keyBoard.input();
        }

        usb.closeDevice();
    }
}
